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A glass sheet 1.40 ?m (micrometer) thick is suspended in air. In reflected light, there are gaps in the visible spectrum at 538 nm and 615.00 nm. Calculate the minimum value of the index of refraction of the glass sheet that produces this effect. n=? Please show your work and explain the equation. Thanks!
Throughout a nuclear reactor accident, 570 m3 of water at 20o C is pumped into the reactor core which is producing heat at the rate of 250 MW. If the water is allowed to boil at normal atmospheric pressure how long would it take to boil away all this..
A copper ion with a single electron (denoted Cu28+) is in an excited state with radius the same as that of the ground state of hydrogen. How much energy in eV is needed to ionize the ion from this excited state
A straight wire in a magnetic field experiences a force of 0.030 N when the current in the wire is 2.7 A. What is the new current
A 0.280 kg ball is dropped from rest at a point 1.35m above the floor. The ball rebounds straight upward to a height of 0.780 m. What are the magnitude and direction of impulse of the net force applied to the ball during the collision with the flo..
What is the speed of the two carts at the moment while their speeds are equal?
An object is 32cm in front of a converging lens with a focal length of 6.9cm, Use ray tracing to determine the location of the image
A car drives straight off the edge of a cliff that is 47.00m high. The police at the scene of the accident observed that the point of impact is 122 m from the base of the cliff. How fast was the car travelling when it went over the cliff.
A man drags a 75.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
As the swimmer approached the Ontario shore, she encountered a cross current of 2 m/s [E 25 S]. Compute her velocity with respect to the crowd observing from the beach (with respect to the ground)
The A string of a violin is 32cm long between fixed points with a fundamental frequency of 440Hz and a mass per unit length of 6.5×10-4 kg/m. What is the wave speed in string.
You are listening a soft music with a sound level of 50 dB. A subway train passes by whose sound level is 90 dB. What is total intensity level of the combined sound in dB.
What is direction of the resultant velocity
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